Each panel is made from acoustic cellulose fiberboard covered with cotton fabric to absorb as much sound and echos as possible, providing a bit of relief for your ears. And when grouped together on a wall, the panels look like a piece of art transplanted from Piet Mondrian's studio, providing a visual treat for your eyes. But while he stuck with bright primary colors, the Whisper panels are limited to a muted selection of earth tones so they don't pop or draw as much attention to themselves.